Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

The National Weather Service released a heat advisory at 4:34 p.m. on Monday valid from Tuesday noon until Wednesday 7 p.m.

The National Weather Service released an updated heat advisory at 11:03 a.m. on Monday in effect until Tuesday at 8 p.m. for ...

The National Weather Service issued an updated heat advisory at 8:10 p.m. on Monday in effect until Wednesday at 8 p.m. for ...

The National Weather Service issued a heat advisory for Wilmington advising people to stay indoors and drink water. For the ...

Millions and millions of Americans are being warned of "dangerous" heat in more than a dozen states as the summer 2025 season ...

On Monday at 12:59 p.m. the National Weather Service issued a heat advisory in effect until Wednesday at 8 p.m. for Southern ...

The National Weather Service has issued a heat advisory for June 24-25, where heat index values may reach as high as 102.

At 8:15 a.m. on Monday, the National Weather Service released a heat advisory in effect until 7 p.m. for Lauderdale, Colbert ...

The National Weather Service office in Fairbanks, Alaska, has issued a heat advisory for Sunday. This is the first of its ...